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Finding the Fourth Proportional to 64,453.38, 88,945.29 and 36,159

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Solution

The fourth proportional to 64,453.38, 88,945.29 and 36,159 is: 49,899.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,453.38 : 88,945.29 = 36,159 : x
  2. Step 2: Convert to fraction form
    64,453.38/88,945.29 = 36,159/x
  3. Step 3: Cross multiply
    64,453.38x = 88,945.29 × 36,159
  4. Step 4: Simplify right side
    64,453.38x = 3,216,172,741.11
  5. Step 5: Solve for x
    x = 3,216,172,741.11/64,453.38
  6. Step 6: Final answer
    x = 49,899.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.